Electropneumatic organ-action



B. e. AUSTIN.

ELECTROPNEUMATIQ ORGAN ACTION.

APPLICATION FILED JAN.2 I9I8.

Patented Mar. 30, 1920.

UNITED STATES PATENT OFFICE.

BASIL AUSTIN, OF HARTFORD, CONNECTICUT, ASSIGNOR T0 AUSTIN ORGANCOMPANY, OF HARTFORD, CONNECTICUT, A CORPORATION OF MAINE.

ELECTROPNEUMATIC ORGAN- ACTION.

1918. Serial No. 209,981.

invention is the provision of a valve structure which is simple andeffective.

In the drawings accompanying and forming part of the presentspecification I have shown a convenient form of embodiment of theinvention which I will set forth fully.

in the following description. I do not, however, restrict myself to thisdisclosure; I may depart therefrom. in several respects within the scopeof the invention defined by the claim following said description.

Referring to said drawings:

Figure 1 is a transverse section of an organ action involving theinvention.

Fig. 2 is an enlarged sectional view of the magnet-operated valve andits adjuncts.

Fig. 3 is an inside face view of the casing for the magnet operatedvalve, and

Fig. 4 is an outside face view of the cage for the pneumaticallyoperated valve.

Like characters refer to like parts throughout the several views.

The structure involves relay mechanism comprising a main support as 2and an aux-.

ilia-ry support as 3. Both these may as usual be of wood. The mainsupport 2 has certain windways, hereinafter described, while theauxiliary support 3 constitutes what is known as a relay bar. The twoparts 2 and 3 are connected by parts as l having windways as 5. The part3 can be held to the part 2, and the connecting tubes 41.- can bemaintained in assembled relation with said parts 2 and 3 in somepermanent manner as by screws 6. The support or bar 3 carries a numberof cases as 7 generally made of metal. A detailed description of onecase and its accessories will, of course, apply to the others, and forthis purpose reference may be had especially to Figs. 2 and 3. The casetherein shown has on its in- Del. side near the upper end thereof, theboss 8 adapted to snugly fit the passage 9', said case having near itslower end also on the inner side the projection 10 to fit the opening 11in the relay bar 3. The case 7 is, therefore, removably mounted. It isheld in position by a spring 12 connected with the relay bar 3 andbearing against the cap or cover member 13 as will hereinafter moreparticularly appear. This cap or cover member 13 closes the outer openside of the case 7, fitting a rabbet therein, the packing 15conveniently of aper,resting on the bottom' of the rabbet. ll; will beunderstood that the thin packing 15 has between its ends a slot 15 inconstant register with both the ports 18' and 19. This cover 'piece 13constitutes a supporting member for the magnet 16 of horse-shoe type,the poles of the magnet being driven into holes inthe said part 13. Thefree end of the spring 12 to which I have already referred is fitted inan indentation 17 in the cover piece 13. By

disengaging the spring 12 from said part 13,

the latter can be dismounted as can also the case 7. In the cover piece13 are ports 18 and 19. In the case 7 is an approximately oval flange20, the space in which constitutes a port in register with the port 21of the relay' bar 3, said port 21 being in communication with-theatmosphere. Adapted to seat against the outer edge of the oval flange 20is the valve 22 constituting an armature for the magnet 16 and faced onits inner side as at 23 by leather or something of asimilar soft nature;The parts 2 and 3 and their adjuncts hereinafter described are generallyinclosed in a pressure box 2, the

Specification of Letters Patent. Patented D131, 30, 1920, Originalapplication filed May 29, 1916, Serial No. 100,502. Divided and thisapplication filed January 2,

stituting part of circuit connections whiclr include a battervand aswitch or other circuit closing device. When. however, it is energizedby the operation of the switch, push button or the like, the valve 22,constituting an armature for the magnet is attracted by the magnet ormoved to the open or dotted line position in said Fig. 2. It will benoted that the valve 22 is ofi center with respect to the magnet 16, thelongitudinal axis of said magnet bein as shown above the center of thevalve,

the result beor swinging movement and is thereafter before describedleads.

v mosphere.

drawn straight outwardly, and owing to this particular relation thevalve is more efficiently and easily opened.

On the support or relay bar 3 is mounted a pneumatic 27 in communicationwith the port or passage 9 by way of the port 28.

The movable member of the pneumatic is connected with the stem 29 of thevalve 30 mounted in the cage 31. This cage consists of a sheet metalshell covering the port or windway 32 leading from apneumatic (notshown). The valve 30 controls the port 33 which it is shown as closingin Fig. 1. The cage or elongated shell 31 has in its outer side the port34 from which the annular flange 35 extends inward the inner edge ofsaid flange constituting a seat for the valve 30. The port. or Windway33 is in communication with atmosphere as is the port 36 into which thepassage 5 herein- The chamber 37 in the relay bar 3 witlrwhich thepassage or windway 5 communicates is also as will be obvious, incommunication with the at- I The shell 31 is merely fitted along theedge of its open side against the support 2; initially it may be held inposition by a small quantity of shellac placed along said edge, althoughthis is not always necessary, because itcan be remova'bly held in placemerely by the use of the spring 38 (or equivalent means) of bowed form,one end of the sprin being seated in the recess 39 in the upper e ge ofthe relay bar 3, while the other end of the spring fits against theouter closed side of said cage or oblong shell 31. For holding the cageor shell 31 in proper relation, the pins 40 maybe provided, these pinsextending somewhat freely through perforations in the outer closed sideof the cage and being driven into the support or bar 2. The spring 38has aneye at its inner end to fit over the upper of the two pins, byreason of which said upper p n aids in holding the spring in position.his provides an exceedingly simple way of holding the cage 31 in place.The use of a valve as 30 and a valve as 22 and the hereinbeforedescribed adjuncts thereof is in no sense new, the only novelty being inthe manner in which the cage 31 is mounted, the way the spring 38 isassociated with said cage, and the novel relation between the valve 22and its operating magnet 16 and certain details as will be moreparticularly set forth in my claim.

InFig. 1 the parts are shown as occupying their normal positions, thevalve 30 being closed against the inner end of the Windway or port 33,while the valve 22 is closed against the port 20 as shown by fulllinesin Fig. 2. To obtain the pneumatic action as familiar in organs,the magnet 16 will be energized to attract its armature 22 constitutinga valve, so as to cover the ports 18 and 19 to pressure and put thepneumatic 27 into communication with the atmosphere. When this conditionensues, the pneumatic or bellows 27 will be collapsed so that the valve30 will be drawn away from the port 33 and cover the port 34, so thatthe windway 32 will be put into connection with the port 33 by Way ofthe cage 31 to effect the operation of the pneumatic or perform someequivalent act as quite common in organs.

When the magnet 16 is deenergized the valve22 is moved by the pressurein the pressure box against its seat on the flange 20 as shown by fulllines in Fig. 2, thus cutting off the bellows or pneumatic 27 from theatmosphere and admitting pressure, owing to which the pressure can forcethe valve 30 against its seat at the inner end of the windway 33.

It will be noted that the side walls of the cage 31 and the pins 40jointly act to guide the valve 30. It will also be noticed that thepacking 15 is free or loose, by reason of which it can be readilyreplaced if. desired.

The present application is a division of an application filed bv me May29, 1916,

Serial No. 100,502 which has issued-as Patent No. 1,277,529 of Sept. 3,1918, and to which patent reference may be had for the construction ofthe action which involves the subject matter of'the present applicationas well as that of the patent.

What I claim is:

A valve case having a port in communication with the atmosphere andprovided with a cover having a port in communication with pressure, avalve normally held against the first mentioned port, a horseshoemagnet, the cover having perforations into which the poles of the magnetare rigidly fitted, the center of the valve being at one side of thelongitudinal axis of the magnet, and a packing between the valve and thecover and free of them both.

In testimony whereof I aflix my signature in the presence of twowitnesses. v i

JOHN T. 'Aus'rm, HEATH SUTHERLAND.

